[Jon Jack]

Or you could use some of your pre-2007 batteries.

We had a motorized cart last year, but we weren't using the motors to drive the cart. We used a scissor lift to lift our robot into a working position (the top of the cart was roughly waist level) when it was in the pits and then we'd lower it to a moving position (the top of the cart was roughly shin level) to move our robot to and from the field.

We also had a little area on the undercarriage we could use to charge our pneumatics before matches and keep our tools for any on field repairs we might have needed.